Full ring cash grind is like LFD normals - not hard, not many wipes, low stress etc.

Tourneys are like non-rated BGs - sometimes it's awesome when you get a good team who defends nodes and follows the strategy but often it's bots, afk-ers, road fighting tards, HK tunnel vision farmers, "let them win" ...

HU cash is competitive arena - occasionally you'll get nubs, but way more often you'll get geared to the teeth gladiator mages and battlemaster rogues

I've played WoW for years no one ever uses "tech up." Also wtf is a passive raise vs aggressive raise???

Anyways, I'm not sure what your definition of what "grinder" means, but you can definitely grind out money playing heads up and tournaments. I assume you think of it as like a mass multi tabler who's doing 6 max or full ring right? Any of these three avenues can be profitable, you just have to find out what you are good at or what you prefer.

The only hands a nit balances in his range are the nuts, the second nuts, and the third nuts.

probably best to start with low stakes full ring. focus on playing tight, learning correct bet sizing and learning the importance of position. try to make a friend or two a few levels above you that can help you out a lot on msn. can also post hands here